Age: 22
Level: Low-A
Position: Starting Pitcher
Bats/Throws: Right/Right
Height/Weight: 6’2″/200 pounds
Acquired: 2022 Draft, 2nd Round
Current BSB Ranking: 16
Previous BSB Ranking: 28
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Player Summary
Brief Summary
After missing all of 2024 due to Tommy John surgery, Jackson Cox re-established himself as one of the Rockies’ top pitching prospects in 2025. The 2022 second-round pick made 23 starts for Fresno, posting a 3.39 ERA with 92 strikeouts in 85 innings while cutting his walk rate nearly in half. Featuring a mid-90s fastball and a plus power curveball, Cox possesses significant upside. Now 22 and Rule 5 eligible this offseason, a strong 2026 push toward Hartford will be crucial.
More detailed breakdown
Cox had a slow start to his career, appearing in 10 games for Fresno before requiring Tommy John and holding him out all of 2024. The Rockies 2nd rounder back in 2022, Cox established himself as one of the organization’s top pitching prospects in 2025. Selected out of a Washington state high school for his premier ability to spin a breaking ball, Cox throws a nasty power curveball that could get MLB bats out today. Cox came to the pros with some strength but underwent some growth during Tommy John recovery as a 19 and 20-year-old. Cox flashed mid-90s velocity in the past but profiles to sit 94-96 in the future; that paired with the plus curveball and overall arm talent give Cox extreme upside.
In 2025, Cox made 23 starts for Fresno, logging a 3.39 ERA with 92 strikeouts across 85 innings. Most impressive, Cox nearly halved his walk rate from 13.4% ot 7.3% in his return from Tommy John — when most pitchers are regaining feel. Now 22 years old, time is no longer Cox’s friend and he will be Rule 5 draft eligible this offseason. Finding his groove in Spokane and making a mid/late season push for Hartford will be essential for the Rockies last prep HS arm selected. Written by Tyler Paddor.
Player Links
MLB.com player page | Fangraphs | Baseball Savant | Baseball Reference
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